Uniformly Convergent Nonpolynomial Spline Method for Singularly Perturbed Robin-Type Boundary Value Problems with Discontinuous Source Term

Habtamu Garoma Debela and Gemechis File Duressa

Abstract and Applied Analysis, 2021, vol. 2021, 1-12

Abstract:

In this paper, a singularly perturbed second-order ordinary differential equation with discontinuous source term subject to mixed-type boundary conditions is considered. A fitted nonpolynomial spline method is suggested. The stability and parameter uniform convergence of the proposed method are proved. To validate the applicability of the scheme, two model problems are considered for numerical experimentation and solved for different values of the perturbation parameter, , and mesh size, The numerical results are tabulated in terms of maximum absolute errors and rate of convergence, and it is observed that the present method is more accurate and - uniformly convergent for where the classical numerical methods fail to give good result and it also improves the results of the methods existing in the literature.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:7569209

DOI: 10.1155/2021/7569209

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